So.Cal. Weld-O-Rama

[shovelon]

trying that 100% helium DCEN aluminum thing. is the soot normal?
https://docs.google.com/file/d/0B225...p=docslist_api

Yes it is.

What filler are you using?

[zapster]

shovelon, weldorwes, southpaw, zzweld.

Nice chunk of chain hangin' from your chin there Southpaw...
I have seen piercings before but MAN that must hurt after awhile...

...zap!

[soutthpaw]

Nice chunk of chain hangin' from your chin there Southpaw...
I have seen piercings before but MAN that must hurt after awhile...

...zap!

Hasn't been off all year.

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[WeldorWes]

Well I cut and hydrofluoric acid etch Terry's weld today and here are the results ergh cany attach the pics
Atleast not from my phone

[atg]

Ok thanks. 4043 3/32" filler. Not sure what the parent (?) metal alloy is as it was a piece of scrap from Bobco, but it is 1/4"

[atg]

Well I cut and hydrofluoric acid etch Terry's weld today and here are the results ergh cany attach the pics
Atleast not from my phone

Just stick it on Instagram maybe? Prob higher image quality here though.

[shovelon]

Well I cut and hydrofluoric acid etch Terry's weld today and here are the results ergh cany attach the pics
Atleast not from my phone

How close did we get to the root? Any cracks?

[shovelon]

Ok thanks. 4043 3/32" filler. Not sure what the parent (?) metal alloy is as it was a piece of scrap from Bobco, but it is 1/4"

Can't access your images. Some google screen comes up asking me for a password.

[Brent878]

Photos.

This is me.

[ezduzit]

Thanks Brent. And a good looking and kind happy face that is.

Too late for me to edit my earlier post.

[soutthpaw]

How close did we get to the root? Any cracks?

Yeah probably on the side I welded.. Heh

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[soutthpaw]

Keep in mind it only got a little wire brushing at best

[weldermike]

Hasn't been off all year.

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Joking I believe. Look at the picture with you, Terri and Wes. Looks like it's hanging from your chin.

[atg]

Can't access your images. Some google screen comes up asking me for a password.

Sorry it's all being done from my phone. Try this:

https://www.dropbox.com/s/0ghuu1fwqz...mp_seg_0_0.3gp

[WeldorWes]

Instagram #Weldorama I also dye pened them Terry u had indications at the toes of the DC root pretty much all the way though

[shovelon]

Instagram #Weldorama I also dye pened them Terry u had indications at the toes of the DC root pretty much all the way though

Yeah I see them. Best cleaned before weld. The AC covers look pretty good.

[shovelon]

I can see the DC weld in this pic.


That's not a crack is it?

[zapster]

Looks more like a hole.

...zap!

[WeldorWes]

I can see the DC weld in this pic.


That's not a crack is it?

No crack its a scratch that is acid etched n water mark

[WeldorWes]

Put up another pic of the root at 3x magnification and found a root crack

[soutthpaw]

Joking I believe. Look at the picture with you, Terri and Wes. Looks like it's hanging from your chin.

Ha, thought he was talking about my collar, that is the hook for the engine hoist I'm standing in front of it

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[DSW]

I'm not seeing much if any penetration on the lower leg of the AC weld. Upper leg shows some penetration. However it looks like the area directly above the Dc weld didn't penetrate as much as it did higher up.


Sort of shows that even if the weld looks well wetted in on the surface, thick material like this just soaks up the heat and prevents good fusion of any depth into the base material. I bet with Terry's Dynasty 700 we wouldn't have these issues...

[WeldorWes]

I'm not seeing much if any penetration on the lower leg of the AC weld. Upper leg shows some penetration. However it looks like the area directly above the Dc weld didn't penetrate as much as it did higher up.


Sort of shows that even if the weld looks well wetted in on the surface, thick material like this just soaks up the heat and prevents good fusion of any depth into the base material. I bet with Terry's Dynasty 700 we wouldn't have these issues...

I am thinkin with better weld prep iirc an acid etch before the dcen root went in pen would have been better material was around 250 degrees f while welding no preheat

[atg]

I am noticing the bottom piece of material seems harder to heat up in aluminum fillet welds. I wonder if the bottom is transmitting heat to the table top thereby requiring more heat to wet out. The vertical piece seems to wet out more rapidly. This would go well with Wes' observation about the preheat making things easier.

What are recommended amp settings on this weld for AC argon? And what correction factor is recommended for using helium instead?

[atg]

Most of my questions seem to be answered in the old threads:
http://weldingweb.com/archive/index.php/t-22308.html

http://weldingweb.com/vbb/showthread.php...-welding/page2

Looks like helium is maybe 10% more efficient at heat transfer. Seems pretty optimistic to try 1"at 115A.